Acoustic Compass
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The CAE Acoustic Compass is a 3D sound intensity probe that is able to measure from low frequencies to high frequencies in 3D. The output of the analysis is a spectrum with amplitude and direction of incidence for each frequency line. The Noise Inspector software shows the direction and the intensity on the 3D display. Intensity measurement systems have a very high dynamic range as there is no algorithm and no beampattern limiting this range. • Online analysis • Localization in small spaces • Ultramobile • Easy to use - like a compass • 3D intensity measurement • Usage from 40 Hz to 4 kHz • Noise leakage detection • Machinery acoustic • Cabin acoustics • Automotive (interieur) • For stationary and quasistationary noise sources CAE Software und Systems GmbH I Noise Inspector \ 40 mm x 40 mm Composite Material 0.5 kg 28 48 kHz 10 Hz to 24 kHz < 33 dB to 120 dB up to 30 dB 0.01 m to to 24-Bit Ethernet -40 °C to +60 °C Non Condensing Acoustic Compass Array Size Array Material Weight (excl. Tripod) Intensity Probes Sample Rate Mic. Frequency Range Operating Range Analysis Dynamic Range Source distance Resolution Interface Operating Temperature Operating Humidity

CAE Software und Systems GmbH Noise source is to the right direction of the probe (3D multiple point) Noise Inspector 8 microphones result in 28 intensity probes Localized sound source (3D multiple points) Each point represents one frequency line, direction and amplitude (color) Noise source (cell phone) is in front of the probe (3D single point) 8 microphones Localized sound source (3D single point represents average direction from 3D multiple points method)